Arrangement of the generators on air-cooled internal combustion engines



Dec. 29, 1931. G. c. CAF'PA I 1,838,806

ARRANGEMENT OF THE GENERATORS ON AIR COOLED INTERNAL COMBUSTION ENGINES Filed Aug. 22, 1950 Patented Dec. 29, 1931 UNITED STATES PATENT OFFICE GIULIO GESARE CAPPA, OF TURIN, ITALY, ASSIGNOR F ONE-BALI TO SOCIETA ANONIMA AUTOMOBILI ANSALDO, OI TURIN, ITALY ARRANGEMENT OF THE GENERATORS ON AIBI-COOLED INTERNAL COMBUSTION ENGINES Application flledfAugust 22, 1980, Serial No. 477,103, and in Italy August 89, 1929.

The arrangement of the generator on aircooled internal combustion engines for the electric equipment of motorcars is not free from difficulties owing to the fact that if arranged in the usual manner the generator is subjected to the stream of hot air issuing from the lower end of the cylinders and is brought to an exceedingly high temperature which is detrimental to the working and life of the generator, said heat adding itself to that transmitted by conduction by the engine and that generated in working.

This invention removes the above mentioned drawbacks by arranging the generator on the suction side of the fan employed for the forced air circulation, and is preferably keyed on the fan shaft, which results in a simpler construction of the operating means and in a more compact engine block.

The annexed drawings show b way of example a constructional form 0 this invention.

Figure 1 is a longitudinal section Figure 2 is an end view of an air cooled engine provided with the arrangement according to this invention.

Referring to the drawings, 6 denotes an engine of the type above referred to provided with a fan 1 for the forced air circulation arranged on a shaft 2, operated by the engine through a suitable transmission gear. Ac-

cording to this invention the generator 3 is keyed on a shaft extending from the shaft 2 and is subjected-therefore to a flow of cold 86 air drawn in by the fan 1 through an annular opening 4.

Thegenerator shell can be secured to the ventilator casing, say by means of three or more stron arms 5.

By the a ove described arrangement the generator temperature is maintained very low by cooling it constantly and in a more efficient manner than is generally the case with water-cooled engines; moreover the engine transmission gear is considerabl simplified thus ensuring asmoother an more eflicient working.

What I claim is: In a selfropelled vehicle, an air-cooled internal com ustion engine, a jacket for said arranged on the front portion of the engine 0 Y and 'a apted to support said ventilating an an electric generator arranged in front of the suction opening of the fan casing and operatively connected with the fan and a, spider-shaped support fixed to the fan case5 ing for supporting said generator.

In testimony that I claim the foregoing as my invention, I have si ed in name.

GIULIO c SAR CAPPA. 

